public static void recursiveMouseTrackListener(
Control c, MouseTrackListener listener, boolean includeListened) {
if (includeListened
|| (c.getListeners(SWT.MouseEnter).length == 0
|| c.getListeners(SWT.MouseExit).length == 0
|| c.getListeners(SWT.MouseHover).length == 0)) c.addMouseTrackListener(listener);
if (c instanceof Composite)
for (Control child : ((Composite) c).getChildren())
recursiveMouseTrackListener(child, listener, includeListened);
}
/*
* @see org.eclipse.jface.text.source.IVerticalRulerColumn#createControl(org.eclipse.jface.text.source.CompositeRuler, org.eclipse.swt.widgets.Composite)
*/
public Control createControl(CompositeRuler parentRuler, Composite parentControl) {
Control control = super.createControl(parentRuler, parentControl);
// set background
Color background = getCachedTextViewer().getTextWidget().getBackground();
control.setBackground(background);
// install hover listener
control.addMouseTrackListener(
new MouseTrackAdapter() {
public void mouseExit(MouseEvent e) {
if (clearCurrentAnnotation()) redraw();
}
});
// install mouse move listener
control.addMouseMoveListener(
new MouseMoveListener() {
public void mouseMove(MouseEvent e) {
boolean redraw = false;
ProjectionAnnotation annotation = findAnnotation(toDocumentLineNumber(e.y), false);
if (annotation != fCurrentAnnotation) {
if (fCurrentAnnotation != null) {
fCurrentAnnotation.setRangeIndication(false);
redraw = true;
}
fCurrentAnnotation = annotation;
if (fCurrentAnnotation != null && !fCurrentAnnotation.isCollapsed()) {
fCurrentAnnotation.setRangeIndication(true);
redraw = true;
}
}
if (redraw) redraw();
}
});
return control;
}
public void activateHoverHelp(final org.eclipse.swt.widgets.Control control) {
control.addMouseListener(
new org.eclipse.swt.events.MouseAdapter() {
public void mouseDown(org.eclipse.swt.events.MouseEvent e) {
if (tipShell.isVisible()) {
tipShell.setVisible(false);
}
}
});
control.addMouseTrackListener(
new org.eclipse.swt.events.MouseTrackAdapter() {
public void mouseExit(org.eclipse.swt.events.MouseEvent e) {
if (tipShell.isVisible()) {
tipShell.setVisible(false);
}
tipWidget = null;
}
public void mouseHover(org.eclipse.swt.events.MouseEvent event) {
org.eclipse.swt.graphics.Point pt =
new org.eclipse.swt.graphics.Point(event.x, event.y);
org.eclipse.swt.widgets.Widget widget = event.widget;
if (widget instanceof org.eclipse.swt.widgets.ToolBar) {
org.eclipse.swt.widgets.ToolBar w = (org.eclipse.swt.widgets.ToolBar) widget;
widget = w.getItem(pt);
}
if (widget instanceof org.eclipse.swt.widgets.Table) {
org.eclipse.swt.widgets.Table w = (org.eclipse.swt.widgets.Table) widget;
widget = w.getItem(pt);
}
if (widget instanceof org.eclipse.swt.widgets.Tree) {
org.eclipse.swt.widgets.Tree w = (org.eclipse.swt.widgets.Tree) widget;
widget = w.getItem(pt);
}
if (widget == null) {
tipShell.setVisible(false);
tipWidget = null;
return;
}
if (widget == tipWidget) {
return;
}
tipWidget = widget;
tipPosition = control.toDisplay(pt);
java.lang.String text = (java.lang.String) widget.getData("TIP_TEXT");
org.eclipse.swt.graphics.Image image =
(org.eclipse.swt.graphics.Image) widget.getData("TIP_IMAGE");
tipLabelText.setText(text != null ? text : "");
tipLabelImage.setImage(image);
tipShell.pack();
setHoverLocation(tipShell, tipPosition);
tipShell.setVisible(true);
}
});
control.addHelpListener(
new org.eclipse.swt.events.HelpListener() {
public void helpRequested(org.eclipse.swt.events.HelpEvent event) {
if (tipWidget == null) {
return;
}
org.eclipse.swt.examples.hoverhelp.HoverHelp.ToolTipHelpTextHandler handler =
(org.eclipse.swt.examples.hoverhelp.HoverHelp.ToolTipHelpTextHandler)
tipWidget.getData("TIP_HELPTEXTHANDLER");
if (handler == null) {
return;
}
java.lang.String text = handler.getHelpText(tipWidget);
if (text == null) {
return;
}
if (tipShell.isVisible()) {
tipShell.setVisible(false);
org.eclipse.swt.widgets.Shell helpShell =
new org.eclipse.swt.widgets.Shell(parentShell, SWT.SHELL_TRIM);
helpShell.setLayout(new org.eclipse.swt.layout.FillLayout());
org.eclipse.swt.widgets.Label label =
new org.eclipse.swt.widgets.Label(helpShell, SWT.NONE);
label.setText(text);
helpShell.pack();
setHoverLocation(helpShell, tipPosition);
helpShell.open();
}
}
});
}
/**
* Enables customized hover help for a specified control
*
* @control the control on which to enable hoverhelp
*/
public void install(final Control control) {
informationPresenterManager.install(control);
/*
* Get out of the way if we attempt to activate the control underneath the tooltip
*/
control.addMouseListener(
new MouseAdapter() {
public void mouseDown(MouseEvent e) {
disposeOfCurrentTipShell();
}
});
/*
* Trap hover events to pop-up tooltip
*/
control.addMouseTrackListener(
new MouseTrackAdapter() {
public void mouseExit(MouseEvent e) {
disposeOfCurrentTipShell();
}
public void mouseHover(MouseEvent event) {
Point pt = new Point(event.x, event.y);
Widget widget = event.widget;
if (widget instanceof ToolBar) {
ToolBar w = (ToolBar) widget;
widget = w.getItem(pt);
}
if (widget instanceof Table) {
Table w = (Table) widget;
widget = w.getItem(pt);
}
if (widget instanceof Tree) {
Tree w = (Tree) widget;
widget = w.getItem(pt);
}
if (widget == null) {
disposeOfCurrentTipShell();
return;
}
if (widget == tipWidget) {
return;
}
tipWidget = widget;
Object data = widget.getData(TIP_DATA);
if (data == null) {
return;
}
final String text;
if (data instanceof String) {
text = (String) data;
} else {
text = data.toString();
}
if (text == null) {
return;
}
// It must be set before showing the tooltip, as we'll loose the focus to the tooltip
// and the
// currently active bindings will become inactive.
KeySequence activateEditorBinding =
KeyBindingHelper.getCommandKeyBinding("org.eclipse.ui.window.activateEditor");
informationPresenterManager.setActivateEditorBinding(activateEditorBinding);
Shell activeShell = UIUtils.getActiveShell();
informationPresenterManager.setInitiallyActiveShell(activeShell);
createControls();
final Point pos = new Point(pt.x + 10, pt.y);
ITooltipInformationProvider provider =
new ITooltipInformationProvider() {
public Object getInformation(Control fControl) {
return text;
}
public Point getPosition(Control fControl) {
return pos;
}
};
if (presenter instanceof IInformationPresenterAsTooltip) {
IInformationPresenterAsTooltip iInformationPresenterAsTooltip =
(IInformationPresenterAsTooltip) presenter;
iInformationPresenterAsTooltip.setData(data);
}
informationPresenterManager.setInformationProvider(provider);
informationPresenterManager.showInformation();
}
});
}